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268141 = 1715773
BaseRepresentation
bin1000001011101101101
3111121211011
41001131231
532040031
65425221
72164516
oct1013555
9447734
10268141
11173505
1210b211
1395083
146da0d
15546b1
hex4176d

268141 has 4 divisors (see below), whose sum is σ = 283932. Its totient is φ = 252352.

The previous prime is 268133. The next prime is 268153. The reversal of 268141 is 141862.

268141 = 462 + 472 + ... + 962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 184041 + 84100 = 429^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 268141 - 23 = 268133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7870 + ... + 7903.

It is an arithmetic number, because the mean of its divisors is an integer number (70983).

2268141 is an apocalyptic number.

268141 is the 328-th centered pentagonal number.

It is an amenable number.

268141 is a deficient number, since it is larger than the sum of its proper divisors (15791).

268141 is a wasteful number, since it uses less digits than its factorization.

268141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15790.

The product of its digits is 384, while the sum is 22.

The square root of 268141 is about 517.8233289453. The cubic root of 268141 is about 64.4843621325.

The spelling of 268141 in words is "two hundred sixty-eight thousand, one hundred forty-one".

Divisors: 1 17 15773 268141